Plaster design marking tool



E. G. MEUWSEN 2,127,130

PLASTER DESIGN MARKING TOOL Filed NOV. 5, 1937 HG1 fm2 ggf 56.4 |:|G.5 Flei INVENTOR. ERNESrGnMEu WSEN HIS ATTORNEY.

Patented Aug. 16, 1938 UNITED STATES ATENT OFFICE PLASTER DESIGN MARKING TOOL Ernest G. Meuwsen, Scarsdale, N. Y.

Application November 5, 1937, Serial No. 172,932

3 Claims.

This invention relates to a` tool for marking designs in plaster and other like surfaces.

Broadly, it is an object of this invention to provide a tool having interchangeable grooving 5 members and. an easy means for adjusting same for marking or grooving all types of plaster surfaces.

More specically, it is an object of this invention to provide a tool for marking or grooving plaster and other like surfaces, said tool having adjustable means for guiding the tool so that straight lines may be made in any direction in an easy and expeditious manner.

Another object is to provide a marking and grooving tool which is inexpensive to manufacture, durable, simple to adjust, easy to use and efficient in its operation.

These and other advantages, capabilities and features of the invention will appear from the subjoined detailed description and more particularly pointed out in the claimsappended hereto.

Referring to the accompanying drawing forming a part of this specification, wherein like characters of reference denote similar parts throughout the several views:

Fig. 1 is a plan View of the marking and grooving tool showing the guide members and a variety of grooving members in position.

Fig. 2 is a side View o-f the marking and grooving tool shown in Fig. 1.

Fig. 3 is an enlarged cross-section taken through 3-3 of Fig. 1.

Figs. 4, 5 and 6 are side views of grooving members having hollow ends.

Figs 7, 8 and 9 are sections taken through '1 -1, 8 8 and 9 9 of Figs. 4, 5 and 6, respectively.

Referring to the drawing, i is a handle with an upper portion l l having a groove l2 as shown on Fig. 2 at the lower part of the upper portion H. Mounted within a groove 46 on the inside face I3, as shown in Fig. 2, of the upper portion Il by screws I4 is a plate i5 containing uniform notches i6 evenly spaced. These notches may also be spaced any desired distance apart. Within these notches i6 there may be inserted grooving members l1 having stems i8 that t within the notches I6 of plate l5. The upper part of the grooving members l1 may vary in shape, such as shown in Fig. 1, at I8, I9, 20, 2l, 22 and 23, respectively. These grooving members l'l may also have hollow or scooped ends in order to leave a smooth line when used on the damp or soft plaster. Such hollow ends are shown in Figs. 4, and 6, at 24, 25 and 2'6, respectively and may be made of spring steel or other metal to give these grooving members resiliency and pliability.

The grooving members il are held in position by a removable upper portion 2l, as shown in Fig. 2, which is placed within groove t upon the inside face i3 oi the upper portion and tightened by screws 29, 30 and 3l and nuts 32, as shown in Figs. 1 and 2. This removable upper portion 2l has a cut-out groove 28 to fit plate l5 and a metal plate 4l is fixed within groove 23 to prevent wear. This metal plate 21 is held in position by screws i4. Any other fastening means may be employed to hold the upper portion l i and removable portion 21 in position, such as clamps, springs, etc.

The upper ends of both the upper portion Il and removable upper portion 2 have L shaped grooves 33 and 32, as shown in Figs. 1 and 2, so that the movement of the resilient grooving member il may have sufiicient play.

In order to guide the grooving tool in straight lines, either diagonal, horizontal or vertical, an adjustable guide member 35 is positioned by sliding guide tracks 35 and 3l beneath the caps of screws 29 and 3e, respectively. To fix the depth for the grooving members il to groove or mark the damp plaster, a second guide member 38 having an adjustable screw 39 is positioned by sliding the guide tracks it and il beneath the cap of screw 3l. The adjustment of screw 39 will change the angle of the grooving tool and the grooving members il, thus determining the depth and character of the grooves or lines to be made in the damp plaster.

To use this grooving tool, grooving members Il of the desired type and width, are inserted in any of the notches l, depending upon the kind, type, spacing and width of line desired to be made in the moist plaster.

After these grooving members il are in position, the removable upper portion 2l is placed upon groove i2 and against the inside face i3 of the upper portion il and screws 29, 3G and 3i are inserted through aligned holes in the upper portion il and removable upper portion 21 and nuts 32 are positioned upon the ends of screws 29, 3Q and 3i, but not tightened. Guide member 38 having adjustable screw 39 is then placed in position by sliding the guide tracks 40 and lll beneath the cap of screw 3l, which is then tightened. Guide member 35 is then positioned by sliding guide tracks 3B and 3l beneath the caps of screws 29 and 30, respectively, which are tightened after the proper adjustment of space i2 between face 43 and guide member 38 and inside face 44 and guide member 35. This space is determined by the Width of the straight edge 45 used as a guide. This straight edge 45 may be of Wood, as shown in Figs. l and 2, metal, plastic or other material.

The screw 39 and guide member 38 is then adjusted to X the angle of the grooving tool and the grooving members Il. This angle determines the depth and character of the lines desired.

The straight edge 45 is then placed in any desired position upon a wall containing a damp plaster surface and the grooving tool is then placed upon the straight edge 45, so that the said straight edge is within the space 42. The grooving tool is then moved parallel with the straight edge 45 to groove or mark the damp plaster surface beneath it.

By this method a great variety of lines or combinations of lines may be made in damp plaster walls and such lines may be panels, diagonal lines, diamond shapes or other dented surfaces.

The many advantages of the herein described invention will readily suggest themselves to those skilled in the art to which it pertains.

From the foregoing description, it is evident a simple device for this purpose has been disclosed, but it is to be understood that I do not desire to restrict or limit myself to the very details of the construction shown and described, which is merely illustrative, it being obvious that changes not involving the exercise of invention may be made without conflicting or departing from the spirit of the invention within the scope of the appended claims.

I claim:

l. A marking and grooving tool comprising a handle and an upper portion having a groove at its lower end, a notched plate mounted transversely and parallel to said groove upon the inside face of said upper portion, resilient and removable teeth having end portions to fit within the notches of said notched plate, a removable upper portion to i'lt upon said groove and against the inside face of said upper portion, said removable upper portion having a transverse, parallel groove to co-act with said notched plate, a

plate mounted Within said groove of said removable upper portion, fastening means for securing said removable upper portion to said upper portion.

2. A marking and grooving tool comprising a handle and an upper portion having a groove at its lower end, a notched plate mounted transversely and parallel to said groove upon the inside face of said upper portion, resilient and removable teeth having end portions to t Within the not-ches of said notched plate, a removable upper portion to fit upon said groove and against the inside face of said upper portion, said removable upper portion having a transverse, parallel groove to co-act with said notched plate, a. plate mounted within said groove of said removable upper portion, fastening means for securing said removable upper portion to said upper portion, a removable and adjustable guide member slidably mounted to co-act with said fastening means for securing said removable upper portion.

3. A marking and grooving tool comprising a handle and an upper portion having a groove at its lower end, a notched plate mounted transversely and parallel to said groove upon the inside face of said upper portion, resilient and removable teeth having end portions to t Within the notches of said notched plate, a removable upper portion to iit upon said groove and against the inside face of said upper portion, said removable upper portion having a transverse, parallel groove to co-act with said notched plate, a plate mounted within said groove of said removable upper portion, fastening means for securing said removable upper portion to said upper porton, a removable and adjustable guide member slidably mounted to co-act with said fastening means for securing said removable upper portion, another slidable member having an adjustable screw, said second slidable member being mounted to co-act with said fastening means for securing said removable upper portion whereby the angle of said marking and grooving tool can be varied by adjusting said adjustable screw.

ERNEST G. MEUWSEN. 

